.layout .logo {
    width: 120px;
    height: 31px;
    background: rgba(255, 255, 255, .2);
    margin: 16px 24px 16px 0;
    float: left;
}

.center {
    text-align: center;
}

.operation a {
    margin-left: 10px;
}

.operation a:first-child {
    margin-left: 0px !important;
}

.hide {
    display: none !important;
}